To be really committed to customer service, you need continually to put yourself in your customers' shoes. This simply means that you need to look at every aspect of your business from your customers' point of view. It can be easy to slip out of the habit of doing this and to revert back to an 'us and them' mentality.
Whenever your are making a key business decision that could affect your customers, stop what you are doing and think about all the possible ramifications. Write down the possibilities, both negative and positive, and then make your decision.
We all need to make difficult decisions in business from time to time; however, there is a right way and a wrong way to go about this. Simply putting up your prices with little or no explanation to your customers is a good way of upsetting them. Taking some time to explain that your prices will be going up and why the price rise is necessary will help to defuse the situation.
Start looking at everything that your business does as if you were a customer. You'll be surprised by how enlightening this can be.